Update US release manifest to MP eCPS artifact

[MaxGhenis]

Summary

• refresh the bundled US release manifest to the MP/eCPS 2024 enhanced_cps_2024 artifact on Hugging Face revision mp-ecps-2024-2cdd45d-20260605 / commit a091769a
• bump the US optional/dev model pin to policyengine-us==1.715.3, matching the data release build package
• regenerate the US TRACE TRO and update manifest metadata tests for the exact-build certification

Verification

• uv run --python 3.13 --extra dev ruff check pyproject.toml src/policyengine/data/release_manifests tests/test_release_manifests.py tests/test_trace_tro.py tests/test_models.py tests/test_dataset_sources.py tests/test_import_policyengine_bundle.py
• uv run --python 3.13 --extra dev pytest tests/test_release_manifests.py tests/test_trace_tro.py tests/test_models.py tests/test_dataset_sources.py tests/test_import_policyengine_bundle.py -q
• uv run --python 3.13 --extra dev python - <<'PY'
  from policyengine.tax_benefit_models.us import managed_microsimulation, us_latest
  sim = managed_microsimulation()
  series = sim.calc('employment_income_before_lsr', period=2024)
  print(us_latest.default_dataset_uri)
  print(sim.policyengine_bundle['runtime_dataset_uri'])
  print(len(series))
  print(float(series.sum()))
  PY